Merge pull request #158 from aim-rsf/update-pkgdown

Simplify the pkgdwn file using the internal tag

_pkgdown.yml

@@ -20,33 +20,10 @@ navbar:
     left:  [intro, reference, articles, tutorials, news]
     right: [search, github, lightswitch]
 reference:
-- title: Functions
-- subtitle: User functions
+- title: "User functions"
   contents:
   - starts_with("map_metadata")
   - browse_metadata
-- subtitle: Internal functions
+- title: "Internal Functions"
   contents:
-  - "concensus_on_mismatch"
-  - "copy_previous"
-  - "count_empty_desc"
-  - "join_outputs"
-  - "json_table_to_df"
-  - "load_data"
-  - "user_categorisation_loop"
-  - "user_categorisation"
-  - "user_prompt_list"
-  - "user_prompt"
-  - "valid_comparison"
-  - "end_plot"
-  - "ref_plot"
-- subtitle: Package data
-  contents:
-  - "domain_list"
-  - "json_metadata"
-  - "log_output_df"
-  - "look_up"
-  - "output_df"
-
-
-
+  - has_keyword("internal")